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Transcription and Regulation

Transcription and Regulation
Transcription factors are

promoters
proteins which bind to DNA and regulate transcription
TATA boxes
CATT boxes

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

recognition of the -10 sequence only
recognition of the -35 sequence only
None of these
recognition of the -10 sequence and -35 sequence

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

beta subunit
sigma subunit
both (a) and (b)
alpha subunit

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Transcription and Regulation
Each tRNA molecule has a cloverleaf secondary structure consisting of

three stem loops
two stem loops
four stem loops
either (a) or (b)

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Transcription and Regulation
Transcription results in

messenger RNA
complementary DNA
Okazaki fragments
an amino acid chain

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Transcription and Regulation
Promoters for tRNAs are located

downstream from the start codon
both (a) and (b)
upstream from the start codon
none of these

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